I'm not sure why, but the latest Insider Preview 14251 started up with the Oct 2015 Surface Pen Driver installed. Rolled back to March manually to avoid issues. Oddly I did have to install the System Hardware Update 1/19/2016 twice.
Only problems I've had is Twitter app unexpectedly quitting while typing a message. Otherwise, no issues.
Only problems I've had is Twitter app unexpectedly quitting while typing a message. Otherwise, no issues.
Facebook
Twitter
Instagram